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Why does a bodhisattva delay entering nirvana?

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Mahayana Guanyin and attendant bodhisattvas, detail of a painted cave mural, Kansu province, China, early 8th century.

In Mahayana Buddhism, a bodhisattva delays entering nirvana out of a profound commitment to the welfare of all beings. Because bodhisattvas understand the doctrine of emptiness (shunyata)—the realization that no individual possesses a permanent, independent "self"—they recognize that there is no fundamental distinction between themselves and others. Consequently, they view their own liberation as inseparable from the liberation of all sentient beings.1

Motivated by compassion (karuna), the bodhisattva vows to attain full buddhahood specifically to serve as a guide and savior for others, helping them traverse the cycle of suffering (samsara). Rather than seeking personal escape from rebirth, they choose to remain engaged with the world, utilizing their wisdom and accumulated merit to assist others in achieving awakening. This path is considered a higher ideal of perfection than that of the arhat, who seeks individual liberation from rebirth.12345